knowledges

Tantalum Bar Processing Technology And Application

2024-01-05 18:00:06

Tantalum, as a rare precious metal, has a wide range of applications. Due to its many exotic properties, tantalum is known as the versatile "king of metals". Moreover, tantalum ranks third only to tungsten and rhenium for its hardness. Therefore, the requirements for tantalum bar manufacturers are also quite high.


Processing technology:

Tantalum cannot be processed in the same way as ordinary metals. In general, the initial process is forging processing heat treatment, making flat slab or round medium and small billets by hammering and punching.


To make a tantalum rod, the material is first forged or extruded to a moderate size in the middle, with a representative cross sectional yield of 70-90%, and then annealed. When reprocessed, a forging, rolling, extrusion, or drawing process is usually used. Wire using the ordinary shape of the wire drawing machine for processing. Because tantalum material is very soft, it is easy to scratch, and the surface problem in drawing is very big, the manufacturer should pay special attention to the surface condition and lubrication.

tantalum rod

USES:

Tantalum, a metallic element, found chiefly in tantalite and associated with niobium. Tantalum is of moderate hardness and malleable, so it can be drawn into thin foil. The coefficient of thermal expansion is very small. Tantalum has excellent chemical properties and is highly resistant to corrosion. It does not react to hydrochloric acid, concentrated nitric acid and "wang shui" under cold and hot conditions. It can be used to make evaporator, as well as electrode, rectifier, electrolysis and capacitor of electron tube. Medically, it is used to make thin slices or threads to repair damaged tissue.


(a) profiled fibers include polygonal, leafy, flat, super flat, multilayered flat, glyph, characteristic, variable section, etc.


(b) hollow differentiated fiber, which includes single middle hole, multiple middle hole, special-shaped middle hole and other varieties.


(c) heterocrimp differentiated fibers include high crimp, spiral crimp, multi-dimensional crimp, multi-dimensional mesoporous crimp, micro-crimp, random crimp, micro-multi-layer crimp, etc.


(d) surface micro-pore type differentiated fibers include micro-pore hollow plus micro-hole, micro-hole, micro-hole, micro-hole, micro-pit, micro-pit, micro-groove, micro-grain and other varieties.


(3) according to the physical and chemical properties of the modified effect, there are mainly two categories: different shrinkage and easy dyeing. The heterogenous contraction category includes high contraction, high stress, heterogenous contraction, unequal contraction, multi-stage contraction, multi-stage heterogenous contraction, multi-stage high-heterogenous contraction and other varieties. Easy dyeing category includes ion dyeing, normal temperature and pressure dyeing, low temperature cationic dyeing, multi-component cationic dyeing, copolyesteric fiber and other varieties.


(4) according to its functional classification, there are anti-static, anti-pilling, flame retardant, anti-permeability, water absorption, dehumidification category; Dust, bacteria and odor prevention; Conductive fiber, anti-ultraviolet, anti-radiation; Heat preservation, cool, dry, aromatic; Full climate; Super functional fiber; Intelligent; High separation function; Biological function; Optical and electromagnetic functional fiber and other varieties.


(5) according to the composition and modification method of fiber forming polymers, there are special polymers, special conjugates and irregular molecular arrangements; Heterogeneous polymer, super irregular, arbitrary orientation; Infiltration of inorganic and organic substances into the polymer; Special high-density ceramic polymers; Amorphous, amorphous, low modulus; Bicomponent, multigroup classification, etc.


(6) according to the different structural morphology of its components, it can be divided into two-layer structure, core sheath, juxtaposition, radiation, juxtaposition and multilayer structure.


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